Geomorphological Contrasts Between Rockslides and Normal Faults: Implications for Tectonic Stability
Most work done to distinguish mass movement deposits from normal fault deposits has been accomplished on a macro-scale basis, with little meso or micro scale analysis. The analysis of two ranges within the Basin and Range province, an actively extending region in the western United States, the Canyon Range and the Snake Range, provides insight into the features that result from extension by normal faulting. In addition, the term “landslide” is further defined as “rockslide” for these regions on the basis of the material involved in the movement and the mechanisms of movement. Using outcrop scale and petrographic scale fracture patterns to establish deformation history, the controversial deposits to the west of the Canyon Range are defined by comparing them to previously established rockslide deposits in the Snake Range. Both regions have been affected by normal faulting, and this tectonic instability is the most likely cause of rocksliding.
Franklin and Marshall College Archives, Undergraduate Honors Thesis 2009
- F&M Theses Collection